Embattled City Councilman Allan Jennings’ bizarre attack on a TV reporter is his latest act of “erratic behavior,” a spokesman for Council Speaker Gifford Miller said yesterday.

Jennings, who is being investigated by his colleagues for allegations of sexual harassment, recently threw a metal object at Fox 5 reporter John Deutzman, who was trying to get comments from Jennings outside his home.

The Post reported the incident yesterday and published a series of photos showing Jennings hurling the metal at the reporter and later picking up a piece of wood to threaten Deutzman.

“Unfortunately, it continues a pattern of improper and erratic behavior,” said Steve Sigmund, a spokesman for Miller, adding of the council probe, “The speaker is confident that the Standards and Ethics Committee will do the right thing.”